PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 11302779-6 2001 Diabetic cataracts are caused by an elevation of polyols within the lens of the eye catalyzed by the enzyme aldose reductase. polyol 49-56 aldo-keto reductase family 1 member B Homo sapiens 108-124